Tobacco pipe



- at the bottom of the combustion chamber. a result of this the lower onefourth of the- '20 and a mouth piece 3!].

Patented Oct. 23, 1951 OFFICE TOBACCO PIPE Alexander Gordon Nisbet, :Rye, N. Y. Application March 31, 1945, Serial N 0. 585,843

My invention relates to improvements in pipes employed for smoking.

In pipes of the types heretofore manufactured in which the pipe stem is tapped directly into the pipe bowl or combustion chamber, it hass'i been found that condensate from the combustion chamber and saliva from the mouth, transmitted through the pipe stem, often collected As tobacco in the bowl tended to become saturated with moisture and would not burn, making it unnecessarily wasteful because this quantity from each bowlful had to be thrown away. It was also found that this wet tobacco had a tendency to sour the pipe thereby greatly lessening the smokers enjoyment.

It is therefore one of the principal objects of my invention to provide a novel and improved pipe construction by means of which the above described disadvantages will be overcome and which will afford an economical, sweet, dry and pleasurable smoke to the user.

Other objects of my invention will become apparent from the description to follow or will hereinafter be pointed out.

In the accompanying drawings;

Fig. l is a longitudinal sectional view of a pipe constructed and arranged in accordance with my invention;

Fig. 2 is a cross-sectional view taken substantially along the line 2--2 of Fig. 1;

Fig. 3 is a cross-sectional view taken substantially along the line 3-3 of Fig. 1; and

Fig. 4 is an end elevational view of the shown in Fig. 1.

Referring now in detail to the drawings I have shown a tobacco pipe constructed and arranged in accordance with my invention and consisting generally of a bowl or combustion chamber Ill for receiving a supply of tobacco therein, a stem The bo l It) may be provided with a reduced shank portion l I at the bottom thereof which is externally threaded and which is adapted to be screwed into a correspondingly threaded opening 2| in the stem 20. The mouth piece 30 is provided, at its inner end, with a reduced shank portion 3| which is frictionally received in the longitudinal bore or opening 22 of the stem. It is thus seen that the assembly and disassembly of the main parts of the pipe are relatively simple and may be quickly accomplished.

It is noted that the stem 20 is providedwith a circular portion 20a disposed below the bowl pipe 4 Claims. (Cl. 131-203) land which may that of the said bowl l and that the bore 22 correspond in contour to ofithe stem 20 also extends underneath the said bowl II], to form a collecting chamber 23 for the condensate from the bowl !0. A through aperture I2 in the bottom wall of the bowl I0 is provided which communicates withthe collecting chamber 23.

' To prevent the condensate or moisture in the collecting chamber 23 from entering the bore 22, I provide an absorbent pad 24 resting at the bottom of the said collecting chamber to hold the moisture which might flow from the bowl I ll.

In accordance with my invention I provide a condensate diffuser l 4 designed to lead the flow of condensate from the bowl It to the absorbent pad 24 in the collecting chamber 23. The said diffuser I4 which may be of metallic or other suitable material comprises an upper tubular portion l5 frictionally-received in the aperture I 2 of the bowl I0, and outwardly flared finger portions I6 depending therefrom. The diffuser I4 is so designed that the fingers 16 will contactively engage the pad 24 to thereby retain the same in position and to form a passageway for the condensate from the bowl to the pad 24, at the same time breaking up capillary action which might cause this moisture to build up and back into the combustion chamber to wet the tobacco therein.

The mouthpiece 30 is provided with a longitudinal axial bore 3| communicating at the inner end with the bore 22 of the stem 20 and terminating at its outer end in an outwardly flared and flattened portion 32. In accordance with my invention I design the bores 3| and 32 in such manner that the top wall of the portion 32 is tangent to and forms a continuation of the top portion of the wall of the bore 3|, while the depth of the flattened bore portion 32 is approximately one-half of the diameter of the bore 3|, as clearly shown in Figs. 1 and 4 of the drawings.

It is thus seen from the above described construction that the bore 22 of the pipe stem, which is relatively large, communicates directly with the collecting chamber 23 thus permitting saliva which enters the bore 22 from the mouth piece 30, to flow directly to the collecting chamber and to the pad 24 therein. The bore 22 is preferably made relatively large so that it will break up any tendency of capillary action to retard the said saliva in its passage to the collecting chamber.

To facilitate the discharge of saliva from the mouth piece 30 into the bore 22 I provide a saliva difiuser 35 which may be made of metal or other suitable material and which comprises a tubular member having a portion thereof frictionally received in the bore 3|, and a portion projecting into the bore 22. The said last named projecting portion of the diffuser 35 terminates in a downwardly flared finger portion 35a, the extreme tip of which is preferably spaced from the wall surrounding the bore 22 to break up any possibility of capillary flow of saliva orthe condensate from the bore 22 back into the bore 3! of the mouth piece.

To insure that only a minimum of moisture can collect in the mouth piece it is contemplated, under my novel pipe construction as above described to make my mouth piece of minimum length compatible with bite and structural requirements.

The collecting chamber is so designed as to provide an ample moisture reservoir and trap to which ready access can be had by'unscrewingsthe I bowl for draining, cleaning and replacement of the pad 24.

It will thus be seen that there 'is provided a device in which the objects of my invention are achieved, and which is well adapted to meet-the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes:

might be made in the embodimentsabove set forth, it is understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

Having described my invention, what I claim and desire to secure by Letters Patent is:

1. In a tobacco pipe comprising a bowl having an aperture therein permitting smoke to be drawn downwardly therethrough, in combination; a stem; of relatively large bore cletachably secured to the lower portion of the bowl, said stem being enlarged to provide an internal portion having a bottom surface of relatively large area disposed beneath said aperture; an absorbent pad having upper and lower surfaces, said lower surface being "lateral apertures consist of notches in the lower periphery of the diffusing member.

4. A tobacco pipe as in claim 1 in which the surface of large area is fiat and is coplanar with the bottom of said bore, whereby, when the bore is downwardly inclined, moisture in said bore will run downwardly and be absorbed by a lateral portion of said pad.

A. GORDON NISBET.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 552,711 Kaldenberg Jan. 7, 1896 589,258 Hannaford Aug. 31, 1897 801,426 Wellner Oct. 10, 1905 871,488 Dieter Nov. 19, 1907 1,116,317 Moehlenbrook Nov. 3, 1914 1,557,641 Worthington Oct. 20, 1925 1,658,728 Lyon Feb. 7, 1928 2,235,100 Deutsch Mar. 11, 1941 2,273,858 Gesek Feb. 24, 1942 FOREIGN PATENTS Number Country Date 3,789 Great Britain of 1892 17,504 Great Britain of 1911 45,941 Austria Jan. 10, 1911 162,407 Great Britain May 3, 1921 488,340 Great Britain July 5, 1938 763,965 France Feb. 26, 1934 

